Want to try how your music sounds like with a hearing impairment caused by being exposed to too high sound pressure levels over a long time?

Copy a nice song of choice to two tracks of your DAW.

Track one: Apply a Band Stop Filter between 1kHz and 4kHz cutting this range to nearly zero.

Track two: Put a Band Pass Filter on the track, cutting everything except this range between 1kHz and 4kHz. Now put a short “Sewer” or “Bathroom” Reverb with around 33/67 Dry/Wet-Ratio on this track and set Track two to around half the volume of track one.

This is the easy to simulate part of that what the “Hearing Impairment Simulator” of my former employer did.